The wife and mistress of the abusive headmaster of a boy's school plot and carry out his murder. They dump his body in the murky swimming pool at the school and await for it to surface. After several days, some unusual circumstances point to clues that he is not dead after all.
| Directing | John Badham | Director |
| Writing | Carol Sobieski | Teleplay |
| Writing | Pierre Boileau | Novel |
| Writing | Thomas Narcejac | Novel |
| Production | Aaron Rosenberg | Producer |
| Sound | Billy Goldenberg | Original Music Composer |
| Camera | Mario Tosi | Director of Photography |
| Editing | David Rawlins | Editor |
| Production | Ross Brown | Casting |
| Art | Boris Leven | Production Design |
| Art | John P. Austin | Set Decoration |
| Costume & Make-Up | Harry Maret | Makeup Artist |
| Costume & Make-Up | Dione Taylor | Hairstylist |
| Production | Donald C. Klune | Unit Production Manager |
| Crew | David McCann | Post Production Supervisor |
| Directing | Frederic W. Brost | First Assistant Director |
| Art | Bill Wainess | Property Master |
| Sound | Don J. Bassman | Sound Mixer |
| Sound | Don S. Walden | Sound Effects |
| Sound | Bruce Stone | Assistant Sound Editor |
| Sound | Roger Sword | Supervising Sound Editor |
| Crew | Cliff Wenger | Special Effects |
| Lighting | Joe Pender | Gaffer |
| Costume & Make-Up | Betsy Cox | Costumer |
| Costume & Make-Up | John S. Perry | Costume Supervisor |
| Editing | Joseph C. Thornton | Assistant Editor |
| Sound | Ken Hall | Music Editor |
| Production | Lois Kerst | Production Assistant |
| Production | Bruce Pittman | Production Assistant |
